Computer is randomly shutting down. Any reason why?

[AWM111]

So my computer randomly shuts down while playing games. There is no blue screen it just randomly shuts down. After i reboot it and play again i go down 20 frames until my next restart. The Cpu temp and the gpu temps are fine. The fans are working fine.

 

[Bossyfins]

Some reason, I think its thermal throttling. Can you give me the temps anyways?

 

[AWM111]

90 degrees F for CPU (idle)
85 degrees F for GPU (idle)

 

[AWM111]

Some reason, I think its thermal throttling. Can you give me the temps anyways?

How long should I leave a stress test for

 

[Bossyfins]

10 mins atleast

 

[AWM111]

10 mins atleast

142 degrees F for the cpu (61 degrees C)

 

[Bossyfins]

Hmm, the last reasonable idea is that your PSU is crap. Bad PSU can sometimes cause shutdowns. Refer to this FAQ.

http://www.tomshardware.com/faq/id-2520345/faq-crap-psu.html